Khurram Faraaz created DRILL-2631:
-------------------------------------
Summary: Project one column from output of Union All results in
Column count mismatch in UNION ALL
Key: DRILL-2631
URL: https://issues.apache.org/jira/browse/DRILL-2631
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Affects Versions: 0.9.0
Reporter: Khurram Faraaz
Assignee: Jinfeng Ni
Projecting values from a single column, from the output of Union All results in
SqlValidatorException: Column count mismatch in Union All.
Tests were run on a 4 node cluster.
case 1) select distinct values from column, fails.
{code}
Error: exception while executing query: Failure while executing query.
(state=,code=0)
0: jdbc:drill:> select distinct sum_salary from (select * from (select
sum(cast(columns[3] as int)) over(partition by cast(columns[4] as varchar(25))
order by columns[4]) sum_salary, cast(columns[1] as varchar(50)) name,
cast(columns[4] as varchar(25)) department from `testWindow.csv`) where
sum_salary > 100000.0 order by name ) union all (select * from (select
sum(cast(columns[3] as int)) over(partition by cast(columns[4] as varchar(25))
order by columns[4]) sum_salary, cast(columns[1] as varchar(50)) name,
cast(columns[4] as varchar(25)) department from `testWindow.csv`) where
sum_salary > 100000.0 order by name);
Query failed: SqlValidatorException: Column count mismatch in UNION ALL
Error: exception while executing query: Failure while executing query.
(state=,code=0)
{code}
case 2) select non distinct values from column fails.
{code}
0: jdbc:drill:> select sum_salary from (select * from (select
sum(cast(columns[3] as int)) over(partition by cast(columns[4] as varchar(25))
order by columns[4]) sum_salary, cast(columns[1] as varchar(50)) name,
cast(columns[4] as varchar(25)) department from `testWindow.csv`) where
sum_salary > 100000.0 order by name ) union all (select * from (select
sum(cast(columns[3] as int)) over(partition by cast(columns[4] as varchar(25))
order by columns[4]) sum_salary, cast(columns[1] as varchar(50)) name,
cast(columns[4] as varchar(25)) department from `testWindow.csv`) where
sum_salary > 100000.0 order by name);
Query failed: SqlValidatorException: Column count mismatch in UNION ALL
{code}
Results returned by the sub-query.(this sub-query is used in the Union All
query above in case 1 and case 2)
{code}
0: jdbc:drill:> select * from (select sum(cast(columns[3] as int))
over(partition by cast(columns[4] as varchar(25)) order by columns[4])
sum_salary, cast(columns[1] as varchar(50)) name, cast(columns[4] as
varchar(25)) department from `testWindow.csv`) where sum_salary > 100000.0
order by name;
+------------+------------+------------+
| sum_salary | name | department |
+------------+------------+------------+
| 452000 | Bill Sawyer | Engineering |
| 452000 | Bob Sr | Engineering |
| 452000 | Jane Doe | Engineering |
| 452000 | Kumar | Engineering |
| 199000 | Patrick | Sales |
| 200000 | Rock Breaker | Product Management |
| 199000 | Sam | Sales |
| 452000 | Susan | Engineering |
+------------+------------+------------+
8 rows selected (0.217 seconds)
{code}
Case where, select * from (Query 1) Union All (Query 2); This query returns
correct results. this is the case where we project all columns from output of
Union All
{code}
0: jdbc:drill:> select * from (select * from (select sum(cast(columns[3] as
int)) over(partition by cast(columns[4] as varchar(25)) order by columns[4])
sum_salary, cast(columns[1] as varchar(50)) name, cast(columns[4] as
varchar(25)) department from `testWindow.csv`) where sum_salary > 100000.0
order by name ) union all (select * from (select sum(cast(columns[3] as int))
over(partition by cast(columns[4] as varchar(25)) order by columns[4])
sum_salary, cast(columns[1] as varchar(50)) name, cast(columns[4] as
varchar(25)) department from `testWindow.csv`) where sum_salary > 100000.0
order by name);
+------------+------------+------------+
| sum_salary | name | department |
+------------+------------+------------+
| 452000 | Bill Sawyer | Engineering |
| 452000 | Bob Sr | Engineering |
| 452000 | Jane Doe | Engineering |
| 452000 | Kumar | Engineering |
| 199000 | Patrick | Sales |
| 200000 | Rock Breaker | Product Management |
| 199000 | Sam | Sales |
| 452000 | Susan | Engineering |
| 452000 | Bill Sawyer | Engineering |
| 452000 | Bob Sr | Engineering |
| 452000 | Jane Doe | Engineering |
| 452000 | Kumar | Engineering |
| 199000 | Patrick | Sales |
| 200000 | Rock Breaker | Product Management |
| 199000 | Sam | Sales |
| 452000 | Susan | Engineering |
+------------+------------+------------+
16 rows selected (0.343 seconds)
{code}
Data from the test file used in above tests
{code}
0: jdbc:drill:> select * from `testWindow.csv`;
+------------+
| columns |
+------------+
| ["100","John Doe","35","80000","IT"] |
| ["10","Bill Sawyer","37","90000","Engineering"] |
| ["2","Rock Breaker","55","200000","Product Management"] |
| ["50","Raj Verma","40","95000","HR"] |
| ["55","Bob Sr","45","85000","Engineering"] |
| ["67","Kumar","40","90000","Engineering"] |
| ["113","Susan","42","100000","Engineering"] |
| ["119","Jane Doe","39","87000","Engineering"] |
| ["89","Bruce Li","32","80000","Fitness"] |
| ["57","Sam","43","100000","Sales"] |
| ["61","Patrick","41","99000","Sales"] |
+------------+
11 rows selected (0.132 seconds)
{code}
{code}
Details of version
| 9d92b8e319f2d46e8659d903d355450e15946533 | DRILL-2580: Exit early from
HashJoinBatch if build side is empty | 26.03.2015 @ 16:13:53 EDT | Unknown
| 26.03.2015 @ 16:53:21 EDT |
{code}
Stack trace from drillbit.log
{code}
2015-03-31 18:29:18,184 [2ae51880-f35a-5805-038f-4c9410c26b81:foreman] INFO
o.a.drill.exec.work.foreman.Foreman - foreman cleaning up - status: []
2015-03-31 18:29:18,187 [2ae51880-f35a-5805-038f-4c9410c26b81:foreman] ERROR
o.a.drill.exec.work.foreman.Foreman - Error
af7b0447-a861-4031-a5a5-730e05bb4821: SqlValidatorException: Column count
mismatch in UNION ALL
org.apache.drill.exec.planner.sql.QueryInputException: Failure validating SQL.
org.eigenbase.util.EigenbaseContextException: At line 1, column 326: Column
count mismatch in UNION ALL
at
org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:147)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:773)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:204)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_75]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_75]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
Caused by: net.hydromatic.optiq.tools.ValidationException:
org.eigenbase.util.EigenbaseContextException: At line 1, column 326: Column
count mismatch in UNION ALL
at
net.hydromatic.optiq.prepare.PlannerImpl.validate(PlannerImpl.java:176)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.validateNode(DefaultSqlHandler.java:157)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at
org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:133)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
at
org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:145)
~[drill-java-exec-0.9.0-SNAPSHOT-rebuffed.jar:0.9.0-SNAPSHOT]
... 5 common frames omitted
Caused by: org.eigenbase.util.EigenbaseContextException: At line 1, column 326:
Column count mismatch in UNION ALL
at sun.reflect.GeneratedConstructorAccessor68.newInstance(Unknown
Source) ~[na:na]
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
~[na:1.7.0_75]
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
~[na:1.7.0_75]
at
org.eigenbase.resource.Resources$ExInstWithCause.ex(Resources.java:348)
~[optiq-core-0.9-drill-r20.jar:na]
at org.eigenbase.sql.SqlUtil.newContextException(SqlUtil.java:673)
~[optiq-core-0.9-drill-r20.jar:na]
at org.eigenbase.sql.SqlUtil.newContextException(SqlUtil.java:661)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:3588)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.type.SetopOperandTypeChecker.checkOperandTypes(SetopOperandTypeChecker.java:68)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.SqlOperator.checkOperandTypes(SqlOperator.java:533)
~[optiq-core-0.9-drill-r20.jar:na]
at org.eigenbase.sql.SqlOperator.validateOperands(SqlOperator.java:412)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SetopNamespace.validateImpl(SetopNamespace.java:70)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:85)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:785)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:774)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.SqlSetOperator.validateCall(SqlSetOperator.java:86)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SqlValidatorImpl.validateCall(SqlValidatorImpl.java:3713)
~[optiq-core-0.9-drill-r20.jar:na]
at org.eigenbase.sql.SqlCall.validate(SqlCall.java:102)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:748)
~[optiq-core-0.9-drill-r20.jar:na]
at
org.eigenbase.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:464)
~[optiq-core-0.9-drill-r20.jar:na]
at
net.hydromatic.optiq.prepare.PlannerImpl.validate(PlannerImpl.java:174)
~[optiq-core-0.9-drill-r20.jar:na]
... 8 common frames omitted
Caused by: org.eigenbase.sql.validate.SqlValidatorException: Column count
mismatch in UNION ALL
at sun.reflect.GeneratedConstructorAccessor69.newInstance(Unknown
Source) ~[na:na]
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
~[na:1.7.0_75]
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
~[na:1.7.0_75]
at
org.eigenbase.resource.Resources$ExInstWithCause.ex(Resources.java:348)
~[optiq-core-0.9-drill-r20.jar:na]
at org.eigenbase.resource.Resources$ExInst.ex(Resources.java:457)
~[optiq-core-0.9-drill-r20.jar:na]
... 24 common frames omitted
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
